Windshield Washer Fluid Reservoir Cap – Chevy Buick GMC Cadillac

Windshield Washer Fluid Reservoir Tank Cap – Fits Chevy, Buick, GMC & Cadillac

Keep your washer fluid system sealed and leak-free with this durable replacement reservoir cap. Engineered to match OEM specifications, this aftermarket cap fits a wide range of Chevrolet, Buick, GMC, and Cadillac vehicles — making it a smart, affordable fix for a cracked, lost, or damaged original cap.

Made in Mainland China.

Product Highlights

• ✅ 100% Brand New — high-quality plastic construction
• ✅ OEM-Spec Design — engineered to match original factory specifications
• ✅ Perfect Fit — snug, secure seal for your washer fluid reservoir
• ✅ Easy Installation — no tools required, simple twist-on fit
• ✅ Stable & Reliable — resistant to temperature changes and fluid exposure

Specifications

• Condition: 100% New
• Color: Black
• Material: Plastic
• Size: Approx. 11.8 cm × 5 cm (4.6" × 2") (L × W)
• Inner Diameter: Approx. 4.6 cm (1.8")
• Package Includes: 1, 2, or 3 × Windshield Washer Fluid Container Cap

Vehicle Compatibility

⚠️ Important: Please verify fitment for your specific vehicle before purchasing.

Note: This is an aftermarket replacement part, not an OEM/authentic factory part. All dimensions are hand-measured; minor deviations may apply. Color may vary slightly depending on your monitor settings.

Keep Your Vehicle Maintained

A properly sealed washer reservoir ensures your washer fluid stays uncontaminated and at the right level — a small but essential part of maintaining clear visibility on the road. For more guidance on windshield washer system maintenance and vehicle safety, visit the National Highway Traffic Safety Administration (NHTSA) or check the U.S. Consumer Product Safety Commission for consumer product safety standards.

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Learn more: Windshield washer fluid

Frequently Asked Questions

Q: Will this windshield washer fluid reservoir cap fit my Chevrolet Cruze or Malibu?

A: Yes! This replacement cap is compatible with the Chevrolet Cruze (2011–2015) and Chevrolet Malibu (2013–2015), among many other Chevy, Buick, GMC, and Cadillac models. Always check the full compatibility list above to confirm your specific year and trim before ordering.

Q: Is this an OEM (factory original) cap or an aftermarket part?

A: This is a high-quality aftermarket replacement cap designed to match original factory (OEM) specifications. It is not an authentic GM factory part, but it is built to the same size and fit standards for a secure, leak-free seal on your washer fluid reservoir.

Q: How do I install the windshield washer fluid reservoir cap?

A: Installation is quick and tool-free. Simply remove your old or damaged cap by twisting it counterclockwise, then align the new cap over the reservoir opening and twist clockwise until it locks securely in place. The process takes under a minute.

Q: What size is this washer fluid cap?

A: The cap measures approximately 11.8 cm × 5 cm (4.6" × 2") with an inner diameter of approximately 4.6 cm (1.8"). These measurements are hand-measured, so minor deviations may occur.